All Metro Mirror sessions and copy sets are suspended
This condition occurs when the Copy Services Manager server lost connectivity to one of the storage systems, and the Metro Mirror sessions went to a suspended state. Then, when the management server regained connectivity, all of the Metro Mirror sessions and copy sets were suspended.
Problem
If the Metro Mirror heartbeat is enabled and the storage system does not receive a heartbeat from the Copy Services Manager server within the allotted time, the storage system itself initiates a freeze operation.
Action
This behavior is expected. The session is suspended in anticipation of a rolling disaster. Check the network connectivity between the Copy Services Manager server and DS8000 system. Verify that no firewalls are implemented that block the icmp ports. Verify the state of the hardware, and, if necessary, restart the ESS network interface.
After the environment is checked, issue the start command for the session or sessions that are automatically suspended.